Brown mordant azo dye.



AUGUST LEOPQLD LASTLL,

seems.

To all Z whom, it com/em:

i)? FFENBiXCH-Glil'flfHE-MAIN, GERMANY, ASSIGNQEEI 'EQ THE-MAIN, I

180 Drawing.

Be it known that I, Amoco)? Lsosoilo LASKA, doctor of philosophy,chemistssubweight.

'Mordant- Azo E 'p'hnol bodies COQH, with nitroeryl-mets-dismins of ijheformula I wherein X means H or fto derkhrown shades diuzotized jectofihe German Emperor, and resident of=0fieihsch Gil-the Main, in vtheGrand Duchy of Hesse, Germany, with tho postofiioe-adclress Gerberstmsse5, have invented new and useful lmprovem enss Brown yestufi's', of whichshe following is a specification.

My invention relates to the production of new 'inordant azo ciyestufisobisinedhy com, bining the diazo compounds of ortho-amino having thegeneral formula .l. 2 @gH.X-Y.S0 H=GIT.N.B I

Y means H, CH Cl, N0

wherein X aiid i.' s. c ii xso iiii iiii CH These sycstuifs produce onwool by sub que t treat ment with chrometes from orange-brown ofVGIjgQOd fastncss. The followin eizampleswili serve to iiiusiratefurther .116 nature of my inveniion and how it may he carried oui; partsbeing by Example I: 95 parts of ortho-aminophenolsulfonic sciifi arediezotized in the usuai manner. "The disco solution is introduced intoa, solution of 90 parts of niisometw phenylenediamin IJO NH NH =l 2 4')1n 5G0 parts of Water and 13-5 parts oi hydrochloric acid (20 13 3,)

Specification of Letters Application filedzlpni 13,1910.

7 1. The process for The temperature of the mixture is raised to 50until the combination is complete. is precipitated by adciiiion ofcommon salt. it dissolves in form of its sodium salt in water withyellow-brown color and dyes wool by subsequent reat mentwith chiomatcsreddish-brown shades of good Easiness.

Example H: 117 parts of ortho-orthonitroamino-phcnolpara -sulfonic acidare in the usual manner. The dizizo solution is introduc d into asolution of 90 parts of nitio'r c phenylenedimnin in 500 parts of Waterand 135 parts of hydrochloric acid (20 B.) Tliejemperjucezof. themixture is raised to 50 and graduallfyf to until the forms tion ofdyestufi is con;-

BRDWJ MQEDANE? DYE.

Pai331$i eas is, was.

Serial 9T0.

cipii'ation of the dyestuff is fiLiCll'i-iOIl of some. common salt.selzboi the dyeshifi' dissolves 1n ietc. The gels complete-cl by The sodumwaier. with refidish-hrown color and dyes hsble the pronertics thehew' slyesmfis A am given:

' Dyfltilififirfizlfififi bycfliabifiing- Dyes wool by j subsequentvtreitmpns The 4112.20 oompoun o- Withga -2 Ortho-sminophenol-para-sul-Hitro mete- Eeddi'sh brown.

ionic acid. ohenyiencaiamm, Aminokrcsclsulfonic acid...,. ....do Reddishbxtvwn.

OIHZNHzICHaQSOaE- i Z l Pam-'chloroorbho-aminophe- .do..... Dark brown.

nol-ortho-sulfonic. Ortho-ortho-nitroaminophe ...do.. .....i Rcddishbrown.- nol-pam-sulfonic acid. 7 Do Nltro -meta- Brown.

9 t o luylene dismin. Aminosulfosalic lie acid Nibro-meta- Orangebrown.

0H2COOH: OAHINHE pheuylene- 1:2 :426 diamin.

Now what- I claim and desire to secure byv Letters Patent is thefollowin the production of new moi'damb az oiiyestuffs consisting incombinii g the diazo compounds of ortho-aminophenol bodies of the geierslformule 3 C H.X,YSG H.OH,NH wherein X and Y means I I H.QH .CLNO.CG0HJ with nitroai'yl-mets-diemins of the foiz'isigla U H JQI TO NH NHv wherein X means HCH i 2. As new articles, the mordant ezo dyestufisobtained by combining the diezocompounds of ortho-aminophenoi bodies ofthe general formula:

H.X.Y.SG1 H.GH.NH ivherein X and Y-means H.CH .CLN@ .COOH

with nitroaryi-mcta-diamins of the formula:

infi i form of their alkali sa ts yellows;

